How many significant figures can your answer have if you multiply 1.0000001 x 0.0000040 x 2002 x 100.0 x 750 x 80?

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gsenviro eNotes educator| Certified Educator

In case of multiplication or division, the answer cannot have more significant digits than the number with least number of significant figures. 

Here, 80 has the minimum number of significant figures, i.e., 1

Hence the answer is given as 

1.0000001 x 0.000004 x 2002 x 100.0 x 750 x 80 = 48,048.0048

rounded to 1 significant figure, i.e. as 50,000.

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